Academic literature on the topic 'Area drenata'

Rapid extension of settlements in Kosovo has made major changes in land use and land cover. Migration of population towards plains has reduced the number of inhabitants in hilly-mountainous areas where low fertile soils are found. Significant part of agricultural land are changed from primary destination, and agricultural potentials are reduced. Urbanization in many cases is made in unplanned way, and in our study area in Drenica River basin are observed land degradation forms and other environmental transformations where in some cases the risk of flooding increased and floods appeared. This study about Drenica River basin will discuss aspects of the influence of morphology, water flows, and the land capability in the distribution of population, and will be a contribution to sustainable urbanization of settlements and agricultural land preservation. In order to accomplish the research are used satellite images, maps of different years, and the census data for the purpose of better coverage that has influence in the process of urbanization on soil resources in Drenica River basin (Kosovo).

En el año 2019, el Área Metropolitana del Gran Resistencia, conformada por las localidades de Resistencia, Barranqueras, Puerto Vilelas y Fontana, ha soportado precipitaciones extremas durante los meses de enero y abril, cuyas consecuencias fueron inundaciones en numerosos barrios del casco céntrico y de las áreas periféricas, con el consecuente deterioro de la infraestructura urbana y problemas ambientales como la diseminación incontrolada de basura con un colapso del sistema de conducción de líquidos cloacales. La ocurrencia de estos eventos extremos diarios, medidos en la Estación Campus Resistencia de la UNNE, han sido producto de un calentamiento extraordinario de la atmósfera en la región central de Sudamérica desde abril de 2018, un debilitamiento de los sistemas frontales de la región antártica y un sostenimiento del calentamiento superficial del Océano Atlántico, creándose un corredor libre de concentración de humedad en la región. Dadas las condiciones críticas que para la población y la infraestructura se generan en el AMGR ante la ocurrencia de los eventos mencionados, se consideró necesario realizar una estimación de la Precipitación Máxima Probable (PMP) para una duración diaria aplicando el criterio estadístico de Hershfield, lo que arrojó un valor para el Factor de Frecuencia Φ = 5, resultando como consecuencia una PMP diaria de 302.2 mm, monto que debería ser tenido en cuenta para llevar adelante el diseño de los planes de contingencia a incluir en un Plan Director de Drenaje Urbano que aún falta desarrollar para esta región.

Purpose. This paper aims to provide complete identification of rock types in the Drenas region by detailed description of all types of the rocks found. The authors intended to determine interruption or continuity of all inter-formational boundaries to accurately delineate them on the ground and fully reflect on the 1: 25000 scale map, as well as to identify the nature of contact between rock types and give its detailed description. Methods. During August, September, October of 2019, the exploration field trips were carried out. Geological survey works focused on the following areas: complete identification of all rock types on the basis of studying their samples, preparation of thin sections for petrographic (only the magmatic rock), chemical and geochemical analysis. Systematic measurement of structural elements was conducted alongside with identification and description of mineral outcrops areas. Findings. Based on the study of stratigraphic units and geological description of mineral outcrop areas, we identified different types of rocks using petrography microscope preparation and chemical and geochemical analysis. The area of Drenas has the following lithostratigraphic units: gabbro diabase, harzburgite, metasandstone. Originality. The originality of the study consists in the use of optical microscope for precise identification of rocks. As a result of the research conducted in the exploration area, we have obtained a clear petrographic description of minerals composition, their texture and mineralization, which allows assessing the possibility of the area exploitation. The analyses were completed at the certified laboratory of Geology-Mining Faculty (Polytechnic University of Tirana) and Geosciences Institute. Practical implications. Petrographic study and chemical analysis led to the conclusion that the research area has Ni mineralization, which is important for the development of mining sector and the community given the environment is preserved and the adequate way of the area exploitation is applied.

ENVIRONMENTAL ZONING OF MICRO WATERSHED AÇUDE DA CACHOEIRA – CEARÁ, BRAZILZONIFICACIÓN AMBIENTAL DE LA MICRO CUENCA HIDROGRÁFICA DEL AÇUDE DA CACHOEIRA – CEARÁ, BRASILRESUMOA bacia hidrográfica, considerada como um conjunto de terras drenadas por um corpo d’água principal e seus afluentes, representa a unidade mais apropriada para o estudo qualitativo e quantitativo dos recursos hídricos, sendo uma unidade ambiental que possibilita tratar dos componentes e da dinâmica das inter-relações necessárias ao planejamento e à gestão ambiental. Os impactos de degradação em bacias hidrográficas são advindos dos múltiplos usos, má gestão e ações antrópicas, sendo necessários o controle e a regulação de ocupação do solo visando à manutenção da qualidade, quantidade e regularidade da água para seus diversos usos. Dessa forma, o presente estudo teve por objetivo realizar a delimitação da Microbacia Açude da Cachoeira – MAC, localizada em maior parte no município de Aurora, estado do Ceará, bem como identificar e discutir dados gerais sobre a rede de drenagem, os parâmetros morfométricos, carta temática hidrográfica, relevo e Áreas de Preservação Permanente – APP’s. Os dados foram obtidos por meio do software gratuito QGIS com auxílio da ferramenta Google Earth Pro para a determinação da microbacia e rede de drenagem, além da delimitação das APP’s dos corpos hídricos e análise das potencialidades. Como resultados, constatou-se que a rede de drenagem da MAC apresenta baixa distribuição do escoamento, no qual oferece um menor risco a enchentes em picos de intensidades chuvosas. Além disso, seus canais de drenagem dispõem de um ordenamento hídrico de quarta ordem e seu escoamento global a classifica como uma bacia endorreica.Palavras-chave: Análise Morfométrica; Rede de Drenagem; Semiárido Brasileiro.ABSTRACTThe watershed, considered as a set of lands drained by a main body of water and its tributaries, represents the most appropriate unit for the qualitative and quantitative study of water resources, being an environmental unit that allows to treat the components and use the necessary interrelationships for environmental planning and management. The impacts of degradation in watersheds are the result of multiple uses, mismanagement and anthropic actions, requiring the control and regulation of land occupation in order to maintain the quality, quantity and regularity of water for its various uses. Thus, the present study aimed to delineate the Açude da Cachoeira watershed - ACMW, located mostly in the municipality of Aurora, Ceará state, as well as to identify and discuss general data about the drainage network, the morphometric parameters, hydrographic thematic chart, relief and Permanent Preservation Areas – PPA’s. The data were obtained through the free software QGIS with the aid of the Google Earth Pro tool for the determination of the micro watershed and drainage network, as well as the delimitation of water bodies PPA’s and potentiality analysis. As a result, it was found that the ACMW drainage network has low runoff distribution, which offers a lower risk of flooding at rainy peak. In addition, its drainage channels have a fourth order water structure and its global flow classifies it as an endorheic basin.Keywords: Morphometric Analysis; Drainage Network; Brazilian Semiarid.RESUMENLa cuenca hidrográfica, considerada como un conjunto de tierras drenadas por un cuerpo principal de agua y sus afluentes, representa la unidad más apropiada para el estudio cualitativo y cuantitativo de los recursos hídricos, siendo una unidad ambiental que permite tratar dos componentes de las interrelaciones dinámicas necesarias para la planificación y gestión ambiental. Los impactos de la degradación en las cuencas hidrográficas son el resultado de múltiples usos, mala gestión y acciones antrópicas, que requieren el control y la regulación de la ocupación de la tierra para mantener la calidad, cantidad y regularidad del agua para sus diversos usos. Por lo tanto, el presente estudio tuvo como objetivo delinear la micro cuenca hidrográfica del Açude da cachoeira- MHAC, ubicada principalmente en el municipio de Aurora, estado de Ceará, así como identificar y discutir datos generales sobre la red de drenaje, los parámetros morfométricos, carta temática hidrográfica, relieve y áreas de preservación permanente - APP's. Los datos se obtuvieron a través del software gratuito QGIS con la ayuda de la herramienta Google Earth Pro para la determinación de la red de micro cuencas y drenaje, además de la delimitación de las aplicaciones de los cuerpos de agua y el análisis de las potencialidades. Como resultado, se descubrió que la red de drenaje MHAC tiene una baja distribución de escorrentía, lo que ofrece un menor riesgo de inundación en el pico lluvioso. Además, sus canales de drenaje tienen un ordenamiento hidrico de cuarto orden y su flujo global lo clasifica como una microcuenca endorreica.Palabras clave: Análisis Morfométrico; Red de Drenaje; Semiárido Brasileño.